Covid 19 coronavirus: Three cases remain under investigation- what we know about NZ's current cases

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Three of New Zealand's current Covid-19 cases remain under investigation - the total number of active cases are 123.

Cases under investigation include:

• The Rydges hotel maintenance worker who is reported to not have come into direct contact with any guests. He may have caught it from a surface an infected person had touched.

• A person who showed up at North Shore Hospital ED on Friday night.

• A person who returned to New Zealand in June and may have caught the virus months ago. They had been asymptomatic, had not tested positive during their stay in MIQ - but all indications were it was an old case.

New details about cases are emerging in between the daily briefings. Photo / Mark Mitchell

Here's what is known about the cases confirmed since the country's first case of community transmission for more than 100 days:

The first cases (four people)

The earliest case found to date was a worker at the Americold cool store in Mt Wellington who became sick on about July 31.

The outbreak was discovered after a woman in her 50s went to the doctor with symptoms and was tested on Monday, August 10.

A second swab on Tuesday, August 11, confirmed the positive result. Three family members also tested positive (her husband, also in his 50s, a woman in her 20s and a baby boy).